Our iron calendar clasps are ideal for organizing your 3-hole calendars. These openable binder rings are made from practical iron, ensuring they can withstand frequent use. Ideal for DIY enthusiasts, these binding rings allow you to easily add or remove pages from your calendar. Simply open the ring, insert your pages, and close it securely. Features -Color:Silver -Material:Iron -Size:4.00X2.00X0.25cm/1.57X0.79X0.10in -Wire Diameter: 2.5 mm -Inner Diameter: 20 mm -practical material: made from iron, these 3ring binder rings are designed to withstand daily use without bending or breaking. -Easy to use: the snap closure mechanism allows for quick and effortless opening and closing, making it simple to add or remove pages -Versatile application: ideal for binding calendars, notebooks, and various documents, these rings are ideal for a wide range of organizational needs - : the strong clasp ensures that your papers stay securely in place, preventing any accidental slips or losses -Diy friendly: ideal for diy projects, these iron rings can be used for creating planners, scrapbooks, and other items Package list: 10 x desk calendar binding rings